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## Copyright (C) 2007-2013 David Bateman
##
## This file is part of Octave.
##
## Octave is free software; you can redistribute it and/or modify it
## under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 3 of the License, or (at
## your option) any later version.
##
## Octave is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with Octave; see the file COPYING. If not, see
## <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
## @deftypefn {Command} {} what
## @deftypefnx {Command} {} what @var{dir}
## @deftypefnx {Function File} {w =} what (@var{dir})
## List the Octave specific files in directory @var{dir}. If @var{dir} is
## not specified then the current directory is used. If a return argument is
## requested, the files found are returned in the structure @var{w}.
## @seealso{which}
## @end deftypefn
function ret = what (d)
if (nargin == 0)
d = pwd ();
elseif (isempty (strfind (d, filesep ())))
## Find the appropriate directory on the path.
p = strtrim (ostrsplit (path (), pathsep ()));
d = p{find (cellfun (@(x) ! isempty (strfind (x, d)), p))(end)};
else
[status, msg, msgid] = fileattrib (d);
if (status != 1)
error ("what: could not find the file or path %s", d);
else
d = msg.Name;
endif
endif
files = dir (d);
w.path = d;
w.m = cell (0, 1);
w.mex = cell (0, 1);
w.oct = cell (0, 1);
w.mat = cell (0, 1);
w.mdl = cell (0, 1);
w.p = cell (0, 1);
w.classes = cell (0, 1);
for i = 1 : length (files)
n = files(i).name;
## Ignore . and ..
if (strcmp (n, ".") || strcmp (n, ".."))
continue;
else
## Ignore mdl and p files
[dummy, f, e] = fileparts (n);
if (strcmp (e, ".m"))
w.m{end+1} = n;
elseif (strcmp (e, ".oct"))
w.oct{end+1} = n;
elseif (strcmp (e, mexext ()))
w.mex{end+1} = n;
elseif (strcmp (e, ".mat"))
w.mat{end+1} = n;
elseif (strcmp (n(1), "@"))
w.classes{end+1} = n;
endif
endif
endfor
if (nargout == 0)
__display_filenames__ ("M-files in directory", w.path, w.m);
__display_filenames__ ("\nMEX-files in directory", w.path, w.mex);
__display_filenames__ ("\nOCT-files in directory", w.path, w.oct);
__display_filenames__ ("\nMAT-files in directory", w.path, w.mat);
__display_filenames__ ("\nClasses in directory", w.path, w.classes);
else
ret = w;
endif
endfunction
function __display_filenames__ (msg, p, f)
if (length (f) > 0)
printf ("%s %s:\n\n", msg, p);
maxlen = max (cellfun ("length", f));
ncols = max (1, floor (terminal_size ()(2) / (maxlen + 3)));
fmt = "";
for i = 1: ncols
fmt = sprintf ("%s %%-%ds", fmt, maxlen);
endfor
fmt = [fmt, "\n"];
nrows = ceil (length (f) / ncols);
for i = 1 : nrows
args = f(i:nrows:end);
if (length (args) < ncols)
args(end + 1 : ncols) = {""};
endif
printf (fmt, args{:});
endfor
endif
endfunction
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